Journal of Materials Chemistry A
·
2020
·Vol. 8
·期 33
·17056-17064
·
IF 11.301
Xin-Yu Hu,Pan Xu,Shengwen Deng,Jie Lei,Xiaodong Lin,Qi-Hui Wu,Mingsen Zheng,Quanfeng Dong
Lithium (Li) is a metallic element possessing the most negative electrode potential and the lowest electrochemical equivalent, which make it one of the key materials for the development of the next-generation Li batteries with high specific energy. However, the heterogeneous deposition, volume expansion, solid-electrolyte interphase (SEI) fracture, and high reactivity of metallic Li make its commercialized development difficult. Herein, a novel polyaniline (PANI) decorated three-dimensional (3D) copper mesh (3DCMP) skeleton for a Li metal anode is proposed, which was prepared by in situ polymerizing aniline on the surface of a copper mesh (3DCM). The lithiophilic PANI micro-sheets could induce ordered Li deposition on the mesh and facilitate the formation of a more available SEI film, which could effectively alleviate the formation of Li dendrites and highly promote the utilization of Li during long-term cycling. The symmetrical-cell displayed an excellent Li plating/stripping performance, in which it maintained an overpotential of less than 20 mV at a current density of 2 mA cm−2 over 4000 h. Furthermore, the full-cell coupled with the LiFePO4 cathode exhibited a high capacity retention of 84.8% at 4C after 550 cycles and when coupled with the rGO/S cathode exhibited a capacity retention of 94.4% at 1C after 100 cycles. Hence, it demonstrates a promising potential to be applied in large-scale manufacturing.
研究领域:
材料科学
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电化学
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储能技术
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纳米材料
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电池化学
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高影响因子
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
·
2022
·Vol. 128
·期 4
·355
·
IF 2.983
Zhang Yixuan,Sun Li,Yu Zhichao,Nie Zhongquan,Cao Ensi
LaFeO 3 nanoparticles were synthesized by a sol–gel method and directly mixed with commercial PANI powders to form a series of PANI–LaFeO 3 nanocomposites according to the mass ratio PANI to LaFeO 3 as 1%, 3%, and 5%. XRD and SEM results reveal that the LaFeO 3 nanoparticles in the orthorhombic crystal structure are distributed on the surface of the PANI bulk. The nanocomposites-based sensors showed better acetone sensing performance than the pure LaFeO 3 , which was ascribed to the increased amount of oxygen adsorbed on the surface of LaFeO 3 nanoparticles and the enhanced modulation of the internal carrier transfer within the nanocomposites. The sensor based on the PANI–LaFeO 3 nanocomposite with a mass ratio of 3% showed the highest response (36.6) to 100 ppm acetone with the best selectivity against methanol, ammonia, and ethylene glycol at the prime working temperature of 120℃. Therefore, the PANI–LaFeO 3 nanocomposite is a promising acetone sensing material with low energy consumption.
研究领域:
材料科学
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传感器与仪器
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纳米技术
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气体传感
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无机化学
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
·
IF 9.7
Yudong Song,Yang Zou,Xinjian Shi,Shengyan Yin,Song Liang,Zhenning Liu,Qinrong He,Hang Sun
In research on pressure-sensitive electronic skin (e-skin) for motion and physiological signal monitoring, balancing sensitivity with a broad pressure-sensing range and intelligent sensing capabilities is of critical importance. Inspired by the micro-ridge of human skin, this work integrates a bionic micro-ridge structure with a PANI-based resistivity modulation strategy to develop an e-skin that enables both high sensitivity and a wide pressure-sensing range for motion and physiological signals monitoring. Ridge-structured PANI was grown in-situ on hydrolyzed polyacrylonitrile fibers via chemical oxidative polymerization. By utilizing the reversible protonation-deprotonation mechanism of PANI in combination with a pH modulation strategy, we adjusted the resistivity of the PANI nanofibrous films to investigate the impact on sensing performance. The synergistic effects of ridge-structured PANI, resistivity modulation and micro-deformation effect of the nanofibrous films enabled the e-skin to exhibit a high sensitivity (maximum 1.91 kPa −1 ) and a wide pressure-sensing range (1–600 kPa). The e-skin can accurately and stably monitor a wide range of signals, ranging from subtle throat vibrations during phonation and gentle abdominal undulations caused by breathing, to larger plantar pressure changes during walking or running. Furthermore, we combined the e-skin with a one-dimensional convolutional neural network (1D CNN, PyTorch-based), enabling rapid and accurate classification of four typical respiratory states (Normal breathing, Rapid breathing, Deep breathing, and Apnea). This work, especially the combination of bionic micro-nano structures and resistivity modulation strategy, provides new insights for the development of pressure-sensitive e-skins with excellent sensing performance.
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DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2026
·Vol. 37
·期 20
·1562
·
IF 3.2
Guo Sijia,Qin Jianguo,Liu Xiangdong,Yang Chuanhua,Song Baisen,Zhu Yongchang,Li Zizhou
Lightweight broadband microwave absorbers with strong attenuation remain challenging because efficient absorption requires balanced impedance matching and electromagnetic loss over a wide frequency range. Herein, hierarchical core–shell BCN@CoNi@PANI (BCNPa) composites were rationally designed by integrating BCN, CoNi alloy, and conductive PANI. BCN serves as a lightweight dielectric substrate, CoNi provides magnetic loss, and the outer PANI shell regulates dielectric response and conductive loss. The electromagnetic properties of BCNPa can be effectively tuned by adjusting the PANI content. The excellent absorption performance over 2–18 GHz originates from the synergistic effects of impedance matching, dielectric loss, magnetic loss, and hierarchical structural attenuation. Dielectric loss is mainly related to defect-induced dipole polarization, interface-related polarization relaxation, and conductive loss from the π-conjugated PANI shell, while magnetic loss arises from natural resonance, exchange resonance, and eddy current loss of CoNi. Benefiting from optimized dielectric–magnetic balance, BCNPa-2 achieves ultralow minimum reflection loss ( RL min ) of − 81.4 dB at 14.12 GHz and an ultrabroad effective absorption bandwidth ( EAB ) covering nearly the entire measured range. This work provides an effective strategy for high-performance broadband microwave absorbers.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Wei Guo,Xiaofeng Li,Taihua Zhang,Xueting Chang,Yan An
Aiming at wearable low-grade heat harvesting, we developed a facile drop‑casting strategy to fabricate freestanding polyaniline/1 T-phase molybdenum disulfide (PANI/1 T-MoS 2 ) composite thick films (~37 μm), using m -cresol as the processing solvent and camphorsulfonic acid (CSA) as the dopant. The composite films successfully decouple the conventional trade-off between electrical conductivity ( σ ) and Seebeck coefficient ( S ) through interfacial coupling and carrier regulation enabled by 1 T-MoS 2 . The optimized PANI‑MoS 2 ‑25 sample delivers a maximum power factor ( PF ) of 26.18 μW·m −1 ·K −2 at 378 K, representing an ~19‑fold enhancement over pristine PANI, together with a low thermal conductivity of 0.22 W·m −1 ·K −1 at 298 K, yielding a ZT ≈ 0.05. The film exhibits excellent mechanical reliability, retaining 94.1% of its initial σ and 96.3% of its initial S after 1000 bending cycles at a radius of 8 mm. A ten‑leg series‑connected flexible thermoelectric generator (F‑TEG) assembled from this film produces an open‑circuit voltage of 4.781 mV at Δ T = 10 K (simulating body‑heat harvesting) and 20.716 mV at Δ T = 43 K, with a maximum output power of 0.729 μW and a peak power density of 9.1 μW·cm −2 . This work provides a feasible material platform and processing route for developing wearable thermoelectric devices that combine high output performance, remarkable flexibility, and simple fabrication.
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高影响因子
VACUUM
·
2026
·
IF 4.3
Mier Bai,Han Liu,Zhenyu Li,Yi He,Shijun Xu,Qing Yuan,Yi Sun,Xiangshan Hou
This study employs a low-temperature oxidation self-polymerization method to prepare polyaniline-coated titanium diboride (TiB 2 @PANI) composite materials and co-deposited them with the Ni-W-P system to fabricate a Ni-W-P/TiB 2 @PANI composite coating. This coating's microstructural features, mechanical characteristics, and anti-corrosive properties are systematically investigated. Experimental results demonstrate that the addition of TiB 2 @PANI reduced the average coefficient of friction (COF av ) of the composite coating from 0.560 to 0.232, while the impedance (R t ) represented an approximate 20-fold increase over the pristine Ni-W-P matrix. The SEM and XRD results indicate that TiB 2 @PANI effectively inhibits coating corrosion failure and enhances the improved early-stage corrosion resistance of the coating during a 72 h immersion test in a 0.1 mol/L H 2 SO 4 solution at 40°C.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Taihua Zhang,Xiaofeng Li,Yunfei Lu,Wei Guo,Yan An,Xueting Chang
Polyaniline (PANI) is a promising organic thermoelectric material, but its application is limited by the intrinsic trade-off between electrical conductivity ( σ ) and Seebeck coefficient ( S ). Here, we report a multi-interface engineering strategy to enhance the thermoelectric performance of PANI/Bi₂Te₃ composites. HCl-doped PANI (HPANI) and Bi₂Te₃ are mechanically mixed, and a small amount of emeraldine base PANI (PANI-eb) is introduced to construct additional organic–inorganic interfaces. XPS and UV-vis spectroscopy reveal that these interfaces induce partial de-doping of HPANI, progressively widening the optical bandgap from 1.49 eV to 2.96 eV and reducing carrier concentration. Simultaneously, the increased interfacial density creates energy barriers that filter low-energy carriers, enhancing the average carrier mobility. Hall measurements confirm a mobility increase from 39.9 to 118.6 cm²·V⁻¹·s⁻¹ at 10 wt.% PANI-eb, while carrier concentration decreases monotonically. Temperature-dependent transport further supports the energy-filtering mechanism. Optimized hot pressing at 75 °C improves interfacial contact and polymer chain ordering, leading to simultaneous enhancement of σ and S . The resulting composite achieves a room-temperature S of 149.1 μV·K⁻¹, σ of 17.35 S·cm⁻¹, and a power factor of 38.59 μW·m⁻¹·K⁻¹, which is comparable to the best literature values for bulk PANI-based composites. This work demonstrates that rational interfacial design with PANI-eb, combined with moderate thermal treatment, provides an effective strategy to balance σ and S in polymer-based thermoelectric materials.
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高影响因子
SENSORS AND ACTUATORS A-PHYSICAL
·
2025
·
IF 4.9
Jintian Qian,Mingxia Feng,Dawu Lv,Ruiqin Tan,Wenfeng Shen,Weijie Song
Flexible humidity sensors play a crucial role in the real-time monitoring of human physiological activities by being integrated with smart terminals, compact medical devices and flexible electronic skins. In this work, a facile fabrication method of a flexible humidity sensor based on a composite material of poly(diallyldimethylammonium chloride) (PDDA) and polyaniline (PANI) using in-situ polymerization and dip-coating techniques was proposed on a microporous poly(vinylidene fluoride) (PVDF) filter membrane substrate. The resulting PDDA@PANI/PVDF-3.50 % sensor demonstrates remarkable sensitivity with a response of up to 5249 % across a humidity range of 11–97 % relative humidity (RH), minimal hysteresis (∼1.2 %), rapid response and recovery times (11 s and 28 s), stable performance under mechanical deformation, and excellent long-term durability. Additionally, the sensor can readily identify three breathing states and detect finger movements as short as 1 mm. The excellent performance is attributed to the hydrophilic modification and synergistic effect of PDDA on PANI chain, and the rich microporous structure of PVDF membrane. This work offers a novel strategy for developing advanced flexible sensors with significant potential in wearable electronic devices for healthcare and human-computer interaction.
研究领域:
材料科学
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生物医学工程
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传感器技术
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DOI
高影响因子
EUROPEAN POLYMER JOURNAL
·
2025
·
IF 6.3
Xinyue Yang,Zhixing Gao,Wei Zou,Zhongjie Du,Chen Zhang
Herein, a hierarchical cornflower-like polyaniline (PANI) was constructed by employing synergistic combination of the interfacial polymerization and the introduction of both branch structure and chiral doping acid to obtain high specific surface area and anisotropic chain alignment. Attributed to such special morphology of the obtained PANI, an enhanced electromagnetic shielding performance could be achieved. The formation of the three-dimensional, radially aligned cornflower-like morphology was investigated in detail. When 7.3 wt% chloroform was introduced, and 1mol% N-phenyl-p-phenylenediamine and 150 mol% 1R-(−)-10-camphorsulfonic acid, based on the aniline monomer, were applied, the cornflower-like PANI with 67.7 m 2 /g of specific surface area was generated. When it was integrated with carbon cloth, the cornflower-like PANI/carbon cloth composite with the overall thickness of 0.193 mm exhibited an electromagnetic interference shielding effectiveness of 76.22 dB in the X-band (8.2–12.4 GHz). More importantly, the absorption (57.56 dB) was identified as the dominant loss mechanism. The proposed preparation strategy offers a novel approach for generating the PANI with special micro-morphology and then an enhanced electromagnetic interference shielding properties.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2025
·
IF 9
Haofan Wang,Zhifei Wu,Xu Zhang,Li Liu,Deqing Liu,Jin Ran,Dawei Zhang
Conventional polymer anion exchange membranes (AEMs) suffer from the permeability-selectivity trade-off in diffusion dialysis (DD), limiting their efficiency in critical resource recovery scenarios (e.g., acid recycling and Li + extraction). To overcome this, this study incorporated polyaniline-modified MXene (PANI-Ti 3 C 2 T X ) nanosheets as transformative fillers into quaternized polyphenylene oxide (QPPO). The resulting PANI-Ti 3 C 2 T X -QPPO membranes enable dual-function DD for H + /metal cations and Li + /Mg 2+ separation. First, the as-prepared membranes exhibited enhanced microphase separation, yielding expanded hydrophilic domains (13.95–14.8 nm vs. 12.5 nm in pristine QPPO). Moreover, the 1.0 %-PANI-Ti 3 C 2 T X -QPPO membrane (with 1.0 wt% filler loading) achieved a peak ion exchange capacity of 1.75 mmol g −1 . For H + /metal cations separation: in HCl/FeCl 2 mixture, the H + dialysis coefficient ( U H ) reached 1.39–1.50 × 10 −2 m h −1 (2.7–2.9 times higher than the commercial TWDDA3S, 0.52 × 10 −2 m h −1 ); in HCl/AlCl 3 mixture, U H reached 1.50–1.53 × 10 −2 m h −1 , combined with exceptional selectivity ( S H/Al = 1568.4–1805.8), outperforming both TWDDA3S ( U H = 0.94 × 10 −2 m h −1 , S H/Al = 1423.8) and pristine QPPO ( U H = 1.27 × 10 −2 m h −1 , S H/Al = 1117). Finally, for Li + /Mg 2+ separation, the membranes delivered enhanced Li + flux with competitive S Li/Mg (11.4–12.4) against TWDDA3S (11.4) and QPPO (11.8). This study demonstrates that PANI-Ti 3 C 2 T X and QPPO synergistically overcome the permeability-selectivity trade-off in polymer membranes.
研究领域:
膜科学与技术
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分离工程
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材料化学
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资源回收
·
离子传输
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DOI
高影响因子
Journal of Materials Chemistry C
·
2025
·
IF 5.1
Kai Xu,Pei Liu,Yinxu Ni,Qingqing Gao,Jin Chen,Shuai Yin,Zixuan Ding,Guohui Tang,Changtian Zhu,Fenghua Liu
Electromagnetic (EM) pollution has emerged as a pressing concern, driving the demand for high-performance microwave absorbing materials. In this work, attapulgite (ATP) was employed as a natural, porous scaffold for the in situ integration of amorphous TiO2, Fe3O4, and polyaniline (PANI), constructing a multifunctional composite with tailored dielectric and magnetic properties. The TiO2 and PANI coatings not only induced strong interfacial and conduction polarization but also formed a continuous 3D conductive network, enabling efficient energy dissipation. Benefiting from the magneto-electric synergy among PANI, TiO2, and Fe3O4, the composite exhibited multiple loss mechanisms and excellent impedance matching. As a result, a minimum reflection loss of -56.24 dB was achieved at 11.63 GHz (2.9 mm thickness), with an ultra-wide effective absorption bandwidth of 8.1 GHz. More importantly, by integrating 3D printing with metamaterial-inspired design, the absorption range was successfully extended into the low-frequency region (4–6 GHz), while simultaneously enhancing structural integrity and corrosion resistance. This study offers a scalable strategy for designing lightweight, corrosion-resistant microwave absorbers by combining hierarchical conductive frameworks with multifunctional components, opening new avenues for next-generation EM shielding and stealth technologies.
研究领域:
材料科学
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电磁工程
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纳米技术
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复合材料
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腐蚀科学
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微波技术
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产品关联
DOI
高影响因子
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
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2025
·
IF 4.6
Jian Mao,Chu Chen,Hongyan Zhang,Haiyang Zhang
In this study, a high-performance ammonia (NH 3 ) gas sensor based on silver nanoparticles (AgNPs)-modified polyaniline (PANI)/tin dioxide (SnO 2 ) composite (Ag/PANI/SnO 2 ) was fabricated via a hydrothermal method. Gas-sensing performance evaluations revealed that incorporating PANI reduced both the response and recovery times of SnO 2 to NH 3 at room temperature. This phenomenon is attributed to the p-n heterojunction formed at the PANI/SnO 2 interface, which enhances charge carrier separation and mobility, thereby facilitating rapid modulation of the depletion layer width and the potential barrier height. Additionally, the integration of AgNPs significantly amplified the sensor's response to NH 3 , owing to the provision of additional oxygen free radicals (O 2 - (ads) ) that promote adsorption and reaction with NH 3 molecules. Compared to pristine SnO 2 , the Ag/PANI/SnO 2 composite exhibited a remarkable reduction in response time from 15.72 s to 1.18 s and in recovery time from 3.75 s to 1.23 s for 1000 ppm NH 3 . The response value increased by 382.07 times from 13.5 to 5158, representing a significant enhancement over pristine SnO 2 . Moreover, experiments showed that Ag/PANI/SnO 2 can be used to detect beef freshness based on monitoring the concentration of NH 3 generated from the reaction between microorganisms and amino acids on the beef surface during spoilage, thereby expanding the application scope of NH 3 sensors.
研究领域:
材料科学
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化学传感器
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食品安全
·
纳米技术
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高影响因子
危险品化学品经营许可证（带存储）